Below is an advertisement.

Chicago White Sox

The Official Site of the Chicago White Sox
MLB.com

Commemorate the 2011 season by displaying a message on the U.S. Cellular Field scoreboard during a White Sox home game. Scoreboard messages can now be purchased for a cost of $55.00. Payment must be made prior to announcement. Your credit card will be charged upon approval of the message. Order your scoreboard message today!

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Ordering Information
There is a limited number of messages available each game. Space is limited, so order your scoreboard message today.
Ordering Deadlines
Scoreboard Message requests must be submitted no later than two (2) business days for a weekday game and three (3) business days for a weekend game prior to the date of the game.
Available Dates
If you do not see the game listed, you have missed the deadline to order online. Orders will be processed in the order in which they are received, and will be taken on a first-come, first-served basis. You will receive e-mail confirmation shortly after the close of the submission period to confirm your order.
Message Content
The White Sox reserve the right to approve and edit any message if necessary. Messages that are obscene, offensive, include foul language or refer negatively to any other Major League Baseball organization will be not accepted. They may also not include the name of any MLB player. The message cannot be used for commercial purposes; however, you may welcome a group or company who is attending the game.
Day-Of-Game Messages
For Scoreboard Message requests that are not submitted by the online ordering deadline, day-of-game messages can be ordered during the game you are attending for $70. Day-of-game messages must be submitted by the end of the third inning at the Guest Relations booths located on the main and upper concourses
Message Length
Messages can be up to 75 characters or less including spaces and punctuation.
Get a Photo of Your Message!
You may also order an 8x10 printout of your message (a re-print of the message; not a photo of the actual message on the scoreboard) for an additional $15. Photos will be mailed approximately two weeks after the game date.

If you have any questions, please call 312-674-5385 or e-mail scoreboard@whitesox.mlb.com.